In industries that rely on the storage and handling of liquids or bulk solids—such as chemicals, food and beverage, water treatment, and manufacturing—accurate level measurement is critical. Using the wrong type of level sensor can lead to overflows, production downtime, equipment damage, or safety risks. At Rhomberg Instruments, we offer a range of level sensors designed for diverse industrial applications, and we’re here to help you choose the right one for your tank and process.
Why Accurate Level Measurement Matters
A level sensor monitors the amount of substance (liquid, powder, or slurry) inside a tank, silo, or container. The data it provides ensures:
- Consistent product quality
- Inventory control and planning
- Prevention of overfilling or emptying
Equipment safety and compliance with regulations
Whether you’re managing water in a treatment facility or chemicals in an industrial plant, having the right sensor improves process efficiency and safety.
Types of Level Sensors Available at Rhomberg Instruments
We supply various level measurement technologies, each suited for specific applications:
Best for: Water, diesel, or non-corrosive liquids
How they work: A float rises and falls with the liquid level, triggering a signal
Advantages: Simple, reliable, cost-effective
Limitations: Not ideal for sticky, corrosive, or turbulent substances
Best for: Liquids and bulk solids (e.g., grains, powders)
How they work: Detects changes in capacitance caused by the presence of material
Advantages: Suitable for non-conductive materials and harsh environments
Limitations: Requires calibration for different media types
Best for: Non-contact measurement in tanks with liquids or solids
How they work: Sends ultrasonic pulses and measures the echo time
Advantages: Ideal for corrosive or hazardous materials
Limitations: Can be affected by foam, dust, or turbulence
Best for: High-precision measurement in challenging conditions
How they work: Uses microwave signals to detect level changes
Advantages: Accurate, non-contact, unaffected by temperature or pressure
Limitations: More expensive, typically used for complex or critical systems
How to Choose the Right Level Sensor
When selecting a level sensor for your tank, consider the following:
- Type of Material – Is it liquid, slurry, or bulk solid? Is it sticky, foamy, or corrosive?
- Tank Size & Shape – Tall silos or narrow vessels may require specific technologies
- Environmental Conditions – Will the sensor be exposed to dust, moisture, temperature extremes, or vibration?
- Contact vs. Non-Contact – Decide based on hygiene, maintenance access, and the nature of your materials
- Output Requirements – Do you need analogue, digital, or relay output for integration with a control system?
Why Choose Rhomberg Instruments?
With decades of experience supplying process instrumentation, Rhomberg Instruments provides:
- Expert advice and application-specific recommendations
- Reliable, industrial-grade level sensors for all environments
- Custom solutions for complex or hazardous applications
- Ongoing support and calibration services
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Conclusion
Choosing the right level sensor isn’t just about buying a device—it’s about optimising your process and protecting your operation. At Rhomberg Instruments, we help South African industries make informed, confident decisions about level measurement technology.
Need help selecting the right level sensor for your tank?
Contact Rhomberg Instruments today for expert guidance and tailored solutions.